Leather-working machine



(No Model.) 5 Sheets-Shest 1.

J. W. VAUGHN. LEATHER WORKING MACHINE.

No. 444,173. Patented Ja (No Model.) 5-.Sheets-Sheet 2. J.- W. VAUGHN. LEATHER WORKING MACHINE.

No. 444,173. Patented Jan. 6,1891.

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QOLWS (No Model.) 5 Sheets-Sheet 3.

' J. W VAUGHN. LEATHER WORKING MACHINE.

No. 444,173. Patented Jan. 6,1891.

J. W. VAUGHN. LEATHER WORKING MACHINE,

' 5 Sheets-Sheet 4.

(No Model.)

No. 444,173. Patented Jan.6,1891.

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No.- 444,173. Patented Jan. 6, 1891 Zh'tnewoy: nwent 01/: ZW WWWM UNITED STATES PATENT OFFICE.

JOSEPH IV. VAUGHN, OF SALEM, MASSACHUSETTS, ASSIGNOR TO THE VAUGHN MOROCCO MACHINE COMPANY, OF PORTLAND, MAINE.

LEATHER-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 444,173, dated January 6, 1891.

Application filed July 28, 1890. Serial No. 360,196. (No model.)

.To all whom it may concern:

Be it known that I, JOSEPH W. VAUGHN, of Salem, in the county of Essex, State of Massachusetts, have invented certain new and useful Improvements in Machines for Working Leather, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to [0 make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of my improved machine; Fig. 2, an end elevation looking from the right in Fig. 1; Fig. 3, a like View looking from the left in Fig. 1; Fig. 4, a sectional elevation of the right-hand portion of the machine; Figs. 5, 6, 7, and 8, perspective views illustrating the clutch mechanism; Fig.

9, a sectional end elevation of a portion of the machine shown in Fig. 2; Fig. 10, a sectional end elevation looking from the left in Fig. 1, and Fig. 11 a central vertical transverse section looking from the left in Fig. 1.

2 5 Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

My invention relates to machines for putring out, setting, striking, scouring, &c., leather, it being especially designed as an improvement on the device shown and described in my Letters Patent of the United States numbered 344,068, dated June 22,1886; and it consists in certain novel features here- 5 inafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more etfective device of this character than is now in ordinary use.

The nature and operation of the improve- 0 merit will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A B represent the end pieces or standards, which are arranged ver- 5 tically and parallel, and are connected at their tops by a horizontal rod 1) at the rear edge thereof. Vertical tracks or ways d are formed centrally on the innerface of each end piece, on which the board or table C is fitted to slide. On each end of the rod 19 a fork fis secured, said forks being fastened to the standards by braces g. A horizontal rotary shaft h is journaled on the forksf by means of pivoted or universal bearings i, said shaft bearing a large sprocket-wheel j at one end and two sprocket-wheels 70 between the standards. The sprockets It are connected by j ack-chains Z with similar sprockets m at the bases of the standards, (see Fig. 11,) and said chains are bolted or secured at p to. the board or table C, whereby said table may be elevated. By detaching the braces g from the tops of the standards the rod Z), supporting the forks f, may be turned and said forks lowered, as shown by dotted lines in Fig. 10, until the large sprocket j is below the standard-tops. A companion rod q, parallel with the rod 5, is mounted in the standards, and hangers r 15, Figs. 1 and 11, are pendent from said rods and fitted to turn thereon.

Two parallel shaft-s v w are mounted in bearings as, Fig. 10, fitted to slide laterally in openings y in the standards, said shafts bearing fluted putting-out rolls D of the construction described in the above-cited Letters Pat- 7 5 ent. These shafts also work in the hangers r t, (see Fig. 1,) by the play of which said rolls may be moved in relation to each other. The lower ends 15 (see Fig. 11) of corresponding hangers near the opposite standards are connected by rods 16 and 17, which pass through openings 18 in said standards. In the base of the standards a treadle-rod 20 is journaled, said rod bearing a treadle 21 and being situated at the front of the machine. Outside the standards to each end of said rod a vertical lever 22 is secured. (See Fig. 10.) On each standard a bell-crank lever 23 is pivoted, one arm thereof being connected with an arm of the lever 22 by a rod 21. The hanger-rods 9o 16 and 17 are connected by bars 25, pivoted together at 26. Cords 27 connect the rods 16 and 17 and pass over pulleys 28 on the standards, between which said cords are drawn or looped downward, bearing a sheave-block 29 5 in said loops. A hook 30 is secured in the eye of said block, and is connected by a rod 31 with the arm of the bellcrank lever 23, as best seen in Fig. 10. By depressing the treadle 21 the cord 27 is drawn downward by means of the levers described. This draws the lower ends of the hangers r t toward each other, and

with them the shafts of the working-rolls l). A handle 35 projects at the front of the machine from one of the bars 25, by depressing which the pivoted end 26 of said bar is moved upward, spreading said hangers and separating the rolls. The roll-shafts r to bear, re spectively, sprocket-wheels 37and 38 at their ends. A horizontal driving-shaft l0 has one end-mounted in pivoted or universal bearings l1 (see Fig. 11) in the standards, said shaft being extended beyond the standard B and its end mounted in a similar pivoted bearing 42 in a standard l3, disposed outside said standard B. The shaft 40 between the standards is incased in a guard-tube 45, as shown in Fig. 1. .Iaelechains it) connect sprocketson the driving-shaft with the sprockets 37 on the roll-shaft l). A companion shaft 50, parallel with the driving-shaft, is mounted in similar bearings IS and if). Gears 51. connect the shafts l0 and 50. Jack-chains 52 connect sprockets on the shaft with the sprockets 38 on the roll-shaft w. The shaft 40 bears a main driving-pulley 53. A sprocket-wheel 55, provided with an elongated hub 56, (shown in Fig. 6,) is disposed loosely on the driving-shaft 40 and is connected by a jack-chain 57 with the large sprocketj on the table-shaft 71. A split sleeve 60, (see Fig. 5,) provided with cars 61, is disposed on the shaft i0 between the standard 13 and sprocket 55. One of said ears is connected by a rod (31 with an arm 62 on the standard B, and the opposite ear is connected by a rod 6-3 (see Fig. 1) with a lever (ll, pivoted to said standard. This sleeve is disposed on one end of the sprocket-hub 5G and serves as a brake to check the rotation of said sprocket. 13y depressing the lever (it the sleeve is drawn tightly onto said sprocket-hub. The purpose ofsaid brake is to regulate the fall of the table (3, hereinafter described.

Near the gear 51 a loose cone-shaped sleeve 70 is disposed on the shaft so. A lever 71 is pivoted to a standard 7., (see Figs. 1 and 4,) and is provided on its upper end with a vertical slot, in which a pin 73, traveling in an annular groove Tl in said cone, works.

A clutch II, the sections of which are shown in Figs. 7 and 8, consists in one section of a sleeve 75, slotted longitudinally at 76 and peripherally at 77, the splitportion being fitted to receive the opposite end of the sprockethub 56. Said section bears a curved stud 78 and a rectangular boss 79. The opposite clutch-section 80 is keyed or set-screwed onto the shaft 40 and is fitted to inelose the sleeve 75. A curved finger S1 is pivoted in the seetion 80, its free end being in position to be engaged by the cone 70, which throws the opposite end of said finger into engagement with the stud 78 on the companion section, clamping it against the sprocket-hub. Said section 80 also has a rectangular groove 83 for receiving the boss 79 on the companion section. A rod is secured to the pivot of the cone-lever 71. and is connected to an angular vertically-arranged rod 80, the head 87 of which projects through an opening 88 in the standard B near the hand-lever (54. A flat hand-spring J0 is bolted to the standard B and has a shoulder on which the head 87 of said rod rests. The rod 86 is connected by a chain 91 with a rod 02, sliding vertically on the standard l3 and provided with an arm 93, which projects through said standard into the path of a stud or trip 94. on the table 0, whereby the rod 80 may be automatically elevated by the table 0 and the cone moved outward on the shaft 40 away from the clutchlinger 81.

In the use of my improvement the skin to be operate]. upon is disposed 011 the table C. The shafts l0 and 50 being in motion conjointly drive the rolls I). The operator,disconnecting the spring 90 from the rod-head 8?, permits the rod 86 to fall. This moves the cone 70 under the finger 81 of the clutch, which binds said clutch onto the sprocketwhecl 55, causing it to rotate and drive the shaft 71, elevating the table C by means of the chains I. As the table passes between the rolls 1) the operator depresses the treadle 21, actuating the pivoted hangers r t in the manner specified to force said rolls into engagement with the skin on said table. When the trip 94: on said table meets the arm 93 of the rod 92, the rod 86 is drawn upward, thereby moving the cone '70 outward and freeing the clutch-finger, which falls. The sprocket is thus free to slip on the shaft 40. By means of the handle 35 the hangers are now spread to free the table from the rolls. The weight of the table causes it to fall rapidly, and to check said fall the operator depresses the handle-lever Gl, clamping the sleeve onto the sprocket-hub and retarding its rotation.

13y arranging the treadle mechanism as described the course of the table is unobstructed, permitting the use of a much larger table than is ordinarily possible, said table being enabled to descend to any desired depth by means of a pit formed under the frame to receive it without the necessity of employing standards of excessive height.

By mounting the shafts in pivoted bearings, as described, inequalities in the bed of flooring a re compensated for.

Having thus explained my invention, what I claim is 1. In a leather-working machine, the vertically-moving table, the lifting mechanism therefor, and the shaft 71, to Which said lifting mechanism is connected, in combination with the driving-shaft, the sliding cone 70, actuating mechanism for said cone, the clutch II, loose sprocket-Wheel 55, having the elongated hub 56, and a chain connecting said sprocket-wheel with the shaft 71, substantially as described.

2. In a leather-working machine, the vertically-moving table, the lifting mechanism therefor, and the shaft into which said lifting comprising an outer sleeve 80, having a finger 81, hearing on said cone, and aninner sleeve -75, having a curved stud 78,engaged by said finger when the cone is moved,-loose sprocket- Wheel 55, having the elongated hub 56, and a chain connecting said sprocket-Wheel with the shaft h, substantially as described.

3. In a leather-working machine, the vertically-moving table, the lifting mechanism therefor, and the shaft h,to Which said lifting mechanism is connected, in combination with the driving-shaft, the sliding cone 70, actuating mechanism for said cone, the clutch H, comprising an outer sleeve 80, having a finger 81, bearing on said cone, and an inner sleeve 75, having a curved stud 78, engaged by said finger when the cone is moved, loose sprocketwheel 55, having the elongated hub 56, one end of which sits Within said inner sleeve 75, asplit brake-sleeve 60 upon the other end of the hub, means for clamping it thereon, and a chain connecting said sprocket-Wheel with the shaft h, substantially as described.

4. In a leather-Working machine, the vertically-moving table, the lifting mechanism therefor, and the shaft 71, to which said lifting mechanism is connected, in combination with the driving-shaft, the sliding cone 70, actuating mechanism for said cone, the clutch I'l,

loose sprocket-Wheel 55, having the elongated hub 56,a split brake-sleeve 60 upon said hub, said sleeve having ears 61, rods connected to said ears and crossing each other, one rod being. secured to a fixed support and the other carrying an operating-handle, and a chain connecting said sprocket-Wheel with the shaft h, substantially as described.

5. In a leather-Working machine, the vertically-moving table, the lifting mechanism therefor, and the shaft h, to which said lifting mechanism is connected, in combination with the driving-shaft, the sliding cone 70, a bellcrank lever pivoted at its angle and one end connected to said cone, an arm 93, connected with the other end of said lever, a stud 94 on the table, adapted to engage said arm 93, the clutch H, operated by the movement of said cone, loose sprocket-wheel 55, having the elongated hub 56, and a chain connecting said sprocket-Wheel With the shaft h, substantially as described.

6. The driving-shaft, sliding table, and lifting mechanism,in combination With the sliding cone and actuating mechanism, the clutch H, and loose sprocket-wheel 55, arranged to operate substantially as set forth.

JOSEPH W. VAUGHN.

Witnesses:

K. DUBFEE, O. M. SHAW. 

